Type-writing machine.



G. B. YAW. TYPE WRITING MACHINE. APPLICATION FILED NOV. 1, 190a.

Patented July 6, 1909.

3SHBBTSBHBBT l.

I NVENTDR:

-64 gym;

\A/ITNEEEE 1-115 ATTQEMZY C. B. YAW.

TYPE WRITING MAGHINE.

APPLIOATION rum) NOV.1,1906.

Patented July 6, 1909.

3 SHEETS-SHEBT 2.

WITNESS-E5:

- I NVENTE1R 0 G. B. YAW. TYPE WRITING MACHINE. APPLICATION FILED NOV. 1, 1906.

m m R E 1 n D 6 T s N W m E M v m 3 :m t h 3 mm 1 2 ll m. I mm. n, \u. M. 5 Mn 7 A k m 4% @N N S 2 mull ralrfi a ma M; n. a 5 O m o a m m S 7 2 0 E 5 3 5 O 2 E 7 m 2 I 9 W UNITED. smarts CLIO B. YAW, OF NEW OFFER omen. Y.; ASSIGNQR'TQ-WYCKOFF, sEAMANs aBnNEnIor, 'oF-ITLioN, NEW YORK AfQRPORAIION QF NEWJORK. a I

TYPE-WRITING 'mcm'm Specification-of Letters Patent,

T0 cll whom it may concern:

Be It known that I, QLIo B. Yaw, citizen of the United ,Styttes, andresident of the borough of Brooklyn, city of New York, in

to the operation of said clamping deviceso and alined in the machine before it isthat the work sheet may be properly entered clamped or held in fixed relation with the platen. r

' Other objects'of the invention will subsequently appear.

ed out in the claims. v

I have shown my lnventlon as applied to.

To the above ends the invention consists in the features of construction, combinations of devices and arrangements of parts herein-c particularly point after fully described and a platen and-platen frame of the Remington style,-but the nature of said invention is such thatii'it may be readily adapted to other styles of writing machines. Y

In carrying out the invention in the pres- I ent instance I provide a plurality or set of stopvpins which are driven, or otherwise fixed in thep'laten andproject from the surface thereof, the set of pinsbeing in alinement and extending from one side of the platen to the other. A clamping plate or blade is i'voted in brackets screwed to-the platen heads, said -plate being constantly pressed toward the platen by 'coiledtsprings'at. its

. ends; The" clamping plate is formed with openings through which the stop pins are protrusive. The bar or rod which supports .the clamping plate projects beyond one of the bearing brackets and has secured to it a crankarm provided at'its free end with ,a

roller which is cooperative with a cam plate fixed to the platen frame. [The roller on the crank arm cooperates with the cam 'plate at a predetermined point in the rotation, of the platento overcome the spring pressure con stantly applied to the clamping plate and employed to feed printed blanks suclias insurance receipts and thelike, and. the platen ratchet teeth correspondingwith r nuinber' of teeth is usually less tlian the usual number of ratchet teeth and; consequently a portion of the "periphery: of the j'ratchet smooth, and the mechanism is arranged so.

'usuals'pring detentjj'u's't a er the clamp has ibecome effective. As a result, assoon as the work sheet is clamped the operator may turn the platen to the first; writing position "quickly and with a minimum expenditure of power, the spring detent during this turning 'the periphery of theratchet wheel. he engagement of the spring detent with the notch at the end of thesmooth portio'mof 'the'line. space ratchet wheel indicates tol theoper'atori that the platen'is'in position for writing, the ifir'st line on the work sheet: y

in applying my invention I preferably dispense with the usual paperpfeedgrollers e' platen;

- My improvements are a plied toithe, exterior of the platen and itisunneCeSSary to cut into the latter and arrange mechanism within its core; Y

is a full-sized fragmentafg the platen and platen came "of a ,No. 6 Remington machine with'the features of my invention applied thereto, parts ofthemachine bei'lig omitted. Fig. 2 is an enlar ed 1 transverse sectional viewof the same ta en on-the plane -represented bythe-line w -win Fig. -1- and looking in the direction of the e l ratentec lluly 6,1909. I Application'flled November 1,1906. Seria1Nb..34 1, 59 4.

wheel is not formedi-withteeth but is left.

movement riding over the smooth art of" and paper fingers and retain only 'thte'dismal, paper apron or scale plate, "providing-the). latter with a pair of fiat sprin s which tend constantly to press it toward t h Further rotary mote is provided'with a s peciallinehpace ratchet wheel which is formed with another of:

thq"num-" 1 her of lines to be wnttenontheiblan k. The p that a this smooth portion" of the ratchet :wheel will come into cooperation with the In the accompanying drawings, Figure 1 top plan vlew of i arrows at said l-ine, certain parts shown in, Fig. 1 being omitted from F g. 2; Fig. 31s a transverse sectional View of the same taken on a plane represented by the 11116 g/ y in Fig. 1 and looking in the direction of the arrows at said line, certain of the parts, howrespectively 9 ever, in Fig. 3 being-shown in relations dif ferent from those in which they appear in Fig. 1.

.In the drawings the platen frame is rec'- tangular in shape comprising front and rear bars numbered respectively 1 and 2 and joined at their ends by side ,or'end bars 3.

A platen axle 4- is journaled in the end bars and supports a platen of the usual or suit-. able construction comprising an interior core 5 and an exterior sheath 6. At the ends of the platen are the usual platen heads 7 and exterior of the right-hand platen head is mounted a line space ratchet wheel 8. As has been stated the ratchet wheel in the presentinstance is of a special form and is notched or serrated as indicated at 9 to form a )l'urality w th the number of linesto. be printed on blank forms to which the construction illus trated is particularly adapted. ,I have not deemed it necessary to illustrate the blank form or forms in the drawings.

' 'lVith a paper clamp autonrtically movable toward and away from the surface of the platen during each rotation thet-o f, it

marked 9, 9 and 9.9, thepurpose {Jfwhich will appear when the operation is described more at length. The smooth portion of the ratchet wheel is indicated by the numeral 10. 'Coo'perative with the ratchet wheel 8 is the usual detent roller 11' mounted on a spring arm 12secured bya screw 13 to the rear bar v 2 of the platen frame. A line space pawl 14 pivoted at 15 to a lever arm 16, pivoted to the platen frame at 17, is adapted to coiiperate with'the ratchet wheel 8 when a line space handle or lever arm 18 of the usual construction is. actuated. I preferably dispense With allof the usual paper feeding devices save the feed rolls at the front of'the platen and the paper apron. Said. paper apron is shown in the drawings and designated by the numeral 19 and carries at its lower end portion the usual platen scale 20 and at its upper end portion .is suitably senated by of teeth corresponding in number Vious that the work sheet employed. must necessarily'not be any longer at the ut-- The periphery of the ratchet cured to pivot blocks 21, t he latter being prvotedatQQ to lugs 23.11s111g fromthe rearbar 2 of the platen frame near the ends are secured to the rearbar 2 by screws 2 1 sa1d'spr1ngs extend ng downwardly behind thereof. Outside the lugs 23 flat springsfi i the paper apron 19 and normally maintaining the paper apron and relation with the platen shown in The usual small feed rolls at the front of the platen, diagrammatically shown and desigthe numeral 25, may be retained to cooperate with the work sheet and prevent itfrom dropping downwardly on the top plate after being released by the automatic clamping means. about to be described.

for squarlng the P I provide gaging means paper so that it may/bewvritten on in lines parallel gagmg means in the present instance ,com-

prising a set of stop-pins, preferably five in Thenumber, designated by the numeral with its top and bottom edges, saidplaten'seale in the ic-p pinsarespaced equal distances apart and are driven into openings in the platen v or otherwise suitablysecured. on said platenin a fixed relation therewith in a straight line longitudinal thereof. These stop ipins have bulbous or enlarged. rounded heads, as

shown. They are adapted to cooperate with an edge, preferably the leading edge, of the work sheet or sheets to square the latter and.

I provide means for. automatically clamping vor gripping the work sheet or sheets after" the squaring operatlonhastaken plac e.hSa1d clamping means is preferably opei atcd auto matically durlng' the. rotary movements of the platen 1n prises a rod or bar 27 which extends'longitudinally of the platen and is partially seated in a groove or depression 28 formedin the sheath 6 of the platen, as shown'in Fig. 3. At its 'endport-ions theQrod 27 bears in openings'in bearing being secured by screws 30' to the platen heads 7. Fixed to the rod 27 is a clamping plate orblade 31 which constantly pressed line spacing direction and combrackets 29, the latter 7 towardthe platen bywire springs 32 coiled around the rod 27, one near each end, the clamping-plate or blade 31 being cutaway I .115

as indicated at 33 to permit of the adjustment of the springs, one end of eaohspring hearing a'gainstthe clamping plate and the other end agalnst the platenklt is preferable to make the rod 27 and the plate, 31 separately, and to afterward secure, the platen in a groove in the rod, and this is the construction illustrateth'but, of course, if preferred the rod 27 and the plate 31 may be made of a sin le piece, or they may be made separately an fastened together in any suitable manner otherthnn thatshown. The clamping plate 31 is formed witlibpenings 34 through which the ate )5 or stop pins 26 protrude so that when t e clamping plate is turned toward andaway from the surface which is pivoted a small roller 38.

of the platen with the pivotal rod 27, Said clamping plate will not be interfered with or obstructed by the stop pins 26. t

In order to swing the clamping plate away from the platen to admit the work sheet and render the gaging means or stop pins 26 operative l employ automatic means co1nprising a crank arm 35' fixed by a set screw 36 or by any other suitable means to the left end of the rod 27 which extends outwardly beyond the lett-hand bearing bracket The cranlr'artn 35 islixed to the rod 27 as clearly shown in Fig. 2, andsaid crank arm has secured to its free end a screw 37 on This roller adapted when the platen has been 1 turned to a predetermined point to cooperate with a cam surface 39 formed-on a fixed cam plateor bar 40, said plate or bar being twisted at its upper end portion, as indi cated at iil, and secured to the rear bar 2 ot the platen frame by a headed screw 42. hi ter the engagement of the roller 38 with the cam surface on the plate 40, further turning movement of the platen 1n line spacing directionwill cause the crank arm to swing about its pivotal axis, thereby connnuincatmg rotary movement to, the rod 27 and swinging the clamping plate 31 away from the surface of the platen against the pressure exerted by the coiled sprlngs 32. This swinging movement of the clamping plate away from the surface of the platen will continue until the latter has been turned far enough to cause the roller 38 to disengage from the cam plate, whereupon the springs will act to force said clamping plate back toward the platen surface. Meantime, of course, the work sheet or sheets have been inserted betweenthe platen and the clamping plate so that the latter will clamp i v or hold said worksheet or sheets 1n :1 fixed relation with said platen and will continue platen,

so to hold it or them until the cam plate,

40 again becomes operative on the crank arm 35. [.I

Asl' have heretofore stated, thh ior m of my invention illustrated is especiallyadapted tor filling in blanks such as arel used-by ins1iran'cewoinpanies for premiumreceipts. Altthe saineiinie that the receipt isfilled in a reference card is also usually written by means of a sheet of carbon paper or other transfer medium arranged between said card and the receipt proper atone end of the while atfthe other end an envelop to contain the receipt is addressed by the aid of the interposed carbon sheet when a stub attached to the receipt proper is being filled in by the operator. This makes three thicknesses of paper at each end ,of the platen, but sometimes the receipt has attached to it an additional stub for memoranda, which j as stub is folded back to inclose the outer ends of thecarbonpaperand reference card,

thereby making tour thicknesses of paper at one s de of the platen, while there are but three at the other. This inequality in thicknesses ot' the work sheets at the two sides tions bite into the work sheet or sheets, as it were, without tearing or mutilating them and I have found in practice that when the clamping'blade is provlded with such projections 4ft that it ismuch more efiicaclou's and 'cert r" H1 operation.

So'rne ures of the operation of my improvements mayfhere betreferred 'tosomewhat more in detail. For convenience of illustration only one thickness of paper is slrown as employed (Fig. 2), said paper or worksheet being designated by the reference character 45. Assuming that the work sheet or blank is in the course of being filled in and that the platen has been turned until it 'and the work sheet thereon are in the positions illustrated in Fig. 2, it is to be understood hat the work sheet or blank' is' only partially filled in and that the last line thereonwill not be written until the platen has been turned or line spaced in the direc tion of the arrow in Fig.- 2 far, enough to enable the line space detent ll to cooperate with the notch '9" which'corresponds with the last line on the blank. When the notch. 9 is engaged by thedetennthe roller-38 on the-crank arm 35 will have it reached closer to the cam surface 39 but W1 1 not yet plate-31 will still be operative on thegwor sheet 45. After the last line has been writ? ten it will be necessaryto turnthe platen through a distance corresponding to the beengagedtherewith, sothat the clamping space between the notch 9 and the notch 9 inorder to fully open'the clamp- The space between the notches 9 and 9 is too great to'be taken by the line spacing pawl 14, and, in order that the lattcr.1nay be employed in the usual way to communicate lme vspace printing movement to the platen between V the notches 9 andfi), I preferably provide a notch 9 between the two notches?? and 9 in order that the pawl 14 may operateon the line spacing wheel. It will be understood that, with this arrangement,*thepawl 141' after cooperating with the notch 9? will next cooperate with the'notch Q andFthereplfiter with the notch 9 ,"but it-is "further to understood that the notch 9 may b0,.d1sensed with'andthe platen mayyifdwirQd, be turned'by hand in the usualweg by manipulating the usual platen finger w eels.

As the platen rotated to disengage the notch 9P'from the detent 11' and to cause the notch 9 .to engage with said detent, the

' roller 38 .will cooperate with the canisarface on the cam plate 40- and the clamping plate 31 will be slightly opened, enabling the .work sheet to be separated-or disconnected from its positive connection. with theplaten and to be removed from the machine. After the unclaniping and prior to removal, the work sheet will be held againstthe platen by the feed rolls only.' WVhen-the platen is further rotatelt cause the notclr 9 to cooperate with ,the detent 11, the cam plate 10 and the crank arm willfarther'cooperate to swing the clamping plate 3ltoits greatest distance away fromthe surface of the platen. .The arts'will now be in the positions illusl -trate' in vFi,

. "31 is so far s'epar'ated from the sur ace of the form therewith a sort of mouth,

v 3.. From'an inspection of this figure it wil be seen thatthe clam ing plate platen as to or pocket to'receive-the work sheet and that s'aid work sheet when inserted will cooperate at its leadinge'dge with the stopping portions of thestop pins 26, that is at the points where said stop pins enter the platen. The flenlarged heads of said'stop pins join the body portions thereof in curves which facilitate the sliding'of the leading edge of the Jwork sheet against the platen and into coo eration with the stopping portions of the considerable advantage. By reason of the fact-that thepins are fixed to the platen in the present construction there is no tendency 'to displace the Work be an erstood sheet after it is alined and prior to its being clamped, as is sometimes the case in constriictions which make use of stops movable relatively to the/platen.

From" a further inspection of. Fig; 3 it willbe noted that the roller 38 is engaged with the ti end of the cam plate 4:0 and it will that a'slight further turning of the platen in line space direction will disengage the roller from the cam plate and perinit the springs 39 to force the cl-an'iping late against the work sheet, clamping the atter against the platen.' It. will be understood that the elamping plate now covers the o crating portions of the stop pins 26 and tie latter are therefore inoperative to properly cooperate with the work sheet. he clamping action will take place during that tarningamoveinent of the platen which is ctfective to disengage the notch 9 from the detent 11 and cause the notch 9 to engage therewith. When the notch 9 is onpower, plished. 'ltwill berecalled that the notch- "aged with the detent it will be seen that further turning movement of the platen will bring the smooth part 10 of the periphery of the line space wheel 8 into cooperation with the detent, and that the part 10 will cooperate withthe detent until the notch 9 The'turning of the" engages, therewith.

platen 'betweenthe notches 9 and 9 is, of

course,- done by hand, the operator turning the usual platen finger wheel and since the surface '10 is unserrated this turning is efl'ected with a minimum expenditure of and is easily and" simply accom- 9 .corresponds with'the first line to be filled in on the work sheet so that when said notch is brought into cooperation withthe detent 11 it isnotification to the operator that the work sheet is properly positioned for beginning the writing.

- From an inspection-of Fig. 3 it will'be seen that when the clamp is fully open the paper apron will be pushed away from the I platen by the stop pins 26, the latter over' coming the springs 24. The paper apron orcurved paper operative position by the stop guide 19 will .be held in inpins and by the rod 27 until said rod and stop pins have passed forwardly away from the lower end of said paper apron. As soon as they have passed, however, these springs paper apron to force the latter apron thereafter serving to hold that portion of the work sheet between the clamping plate 3l "\11(l the platen scale 20 closel against the platen and conducing to a smoot and easy feeding ofsaid work sheet. By this construction it will be" seen 'that the paper feeding device or paper apro'n"19--is rendered automatically inoperative so that it will not interfere with the proper action of the clamping plate and is thereafter rendered automatically operative. on thework sheet. The operationsabove outlined will, of course. be repeated with each succeeding work sheet or sheets to be written.

It will be noted that parts constituting my improvements are applied to the machine as usually constructed without the necessity of cutting into the platen and arranging any mechanism within its interior, the squaring or gaging devices 26 being simply driven into'the surface of the platen and the clamping device being pivoted exteriorly thereof. This feature of my invention is in itself a decided advantage as the expense of prior construction is greatly lessened, as

is also the liability of the parts to. become i invention.

get out of order they are easily accessible as 24 act'on the against the work sheet L5, as shown in Fig. 2, said paper- :What I claim as new and desire to secure I by Letters Patent, is

1; In a typewriting machine, the combi-" 7' nation of a platen; means fixed thereto for squaringa work sheet; and an automatically operating clampin plate for clamping the work sheet, said amping plate extending lengthwise of the platen substantially throughout its length and being pivoted on the platen near the'ends thereo H r 12. In a typewriting machine, the combination ofa platen carrier; a platen; means 3. In a ty writingmachine, the combination of a p aten carrier; a platen thereon;

' acurved" paper guide yieldin ly mounted on said carrier at the rear 0 the platen; gaging or :stop pins fixed to said platen; a clamp ng late extending len thwi'se of the platen and pivotally ,mounte thereon; and means o r'atingto open the clamping plate as the p aten. is turned, said aper guide being moved or swung awpy mm the platen durinf turning movements thereof.

4. n a' typewriting machine, the combination of a platen carrier; a rotary cylindrical platen thereon; sto pins spaced apart and fixed on said, platen engthwise thereofa clampingi plate extending lengthwise o the platen substantiall' throughout its v lengt and ivoted to t e laten near its en 5, said 0 m ing plate ing provided with openings t rough which the stoppins are protrusive; means for turning the platen for line spacing; and a cam mounted on said carrier and opera-tin to ppen the clamp as the platen is turned or line spacing.

5. In a typewritingmachine, the combi-' nation of a rotary laten; hand-actuated means for turning sai platen intermittentl step-by-step; devicesfor squaring the wor sheet and holding it against the platen in squared position, said devices being mounted on the platen and comprising stops fixedly secured to the platen and cod erative wit one of the edges of the work s eet to square the latter and also comprising a clam ing or holding part movable nto and out of o erative position; a spring tending constant y to maintain said clamping part in operative P07 spring. A a 6. In-a 'ty ewriting machine, the combiv nation ofa aten hand actuated means for turning'sai platen intermittently step-bystep' ga g'means for squaring the work 5'? sheet, said gaging means being secured to nation of a rotary said platen in fixed relationship therewith; and means fOIfiIlftbllIlg said gaging means to be employed only when the platen is in a v predetermined position.

I T. In a typewriting machine, the combi nation of a rotary platen; hand'actuated means for turning said platen intermittently step-bystep; gaging means for squaring the work sheet, sald gaging means being secured to .said platen in fixed relationsh p therewith; and means mounted on the platen and movable relatively to said gaging means to expose said gaging means for use. 8. In a typewritmg machine, the combination of a rotary cy indrical platen; handactuated means for turning said platen intermittentlystep-by-step; a plurality-of stops spaced apart lengthwise ofsaid platen and fixedly secured. thereto, said stops being cooperative with an edge of the work sheet to square the latter; and means for clamping the work sheet insquared position.

9. In, a typewritmg machine,'the combination of a rotary cylindrical platen; a plu rality of stops spaced apart lengthwise of said platen and fixedly secured thereto, said f stops being coiiperative with an edge of the work sheet to square the latter; and means for clamping the Work sheet in squared position, said means comprising a springpressed plate pivotally mounted on the platen. I

10. In a typewriting machine, the comhination of a rotary cylindrical laten; a plurality of stops spaced apart engthwise of said platen and fixedly secured thereto, said stops being codperative with an edge'ofthe work sheet to square the latter means for clamping the work sheet in squared position, said means comprisin a spring-pressed plate pivotally mounte on the platen; and means operating automatically to move said clamping means to position to admit the work sheet to position to be clamped. W11. In a-typewriting machine, the combnation of a rotary cylindrical laten; a plurali'ty of stops spaced apart engthwise of said platen and. fixedly secured thereto, said stops being coiiperative with an edge of the wotk-sheet to square the latter; means for clamping the work sheet in squared position said means comprisin' --'a springpressed plate pivotally mounte on the platen; and means operating automatically to render said clamping means operative to receive the work sheet at a redetermined pdint in the ,rotation of the p aten, "sition; and automatic means coiiperative with said clamping part to overcome said 12. In a typewriting machine, the combiplaten; hand actuated means for turning 'said platen intermittently step-by-step; devices for squaring the wor leading edge of the work sheet to square the latter and also comprising a clamping or holding part movable-into and out of operative position; a' spring tending constantlyto maintain said clamping'part in operative position; and automatic meanslcooperative with said clamping-part when the lat ter is at the rear of the platen to overlcome said spring'and move said clamping part to positlon to rcociveythedeading edge portion of the work sheet as- 1t'1s' introduced into the machine behind'the platen.

,13. In a typewritin'g machine, .the' combination of a platen';'hand actuated means for cooperative with ,the. leadin' turning said platen intermittentlystep-by- ;step; gaging means for squaring the, work sheet, said gaging means being 'secured-tq' said platen in fixed relationship therewith; and means automaticallyoperating to can pose said gaging means for use at a point where said gaging'means will'cotiperate with the leadingedge of the worksheet as saidwork sheet is introduced into the machine,

said means atother timespreventin'g the exposure of said gaging means for use.

14. In a type'writ'lng machine thecombt nationjof 'a rotary cylindrical platen; handactuated means for turningsaid platen intermittently step by-step;.. a plurality 1 ofstops spaced-apart lengthwise of said. platen and fixedly secured thereto, said stops being work sheet to square the lat er; andmeans for clampingztheworksheet in squared posig t1on,*sa1d means operating as the. platen 1s being rotated in line spacing direction.

, i 15,111 aftypewriti'ng' machine, the 'comloi nation ofa rota'ry cy-lindria-l platen; a plurality of {stops-spaced apart lengthwise of said platen and 'fixedlyfsecured thereto, said stopsjbeing cooperative with the leading edge of the Work sheet to square the latter 5 and a spring-pressed plate pivotall-y mount ed on thegplaten andv automaticallyv operat-; ing, when it has been turned to "a position at the rear of the platen, to open and close and thereby to receive and clamp, the leading-- i edge of the'worksheet. H

'16. Ina'typewritingmachine, the combination ofa rotary cylindrical platen a plurality of stops spaced apart-lengthwise of said platen and rfixedly secured thereto,;said

' stops being c'ofiperative with an edge-of the worksheet to square thelatter; and means for clamping the work sheet in squared vposition, said means comprising a spring-pressed" plate pivotally mounted onthe platen, said plate bein provided with openings through hich sai stops are protrusive. 17'. In a typewriting machine, the comabination of a rotary cylindrical platen, a

plurality of stops spaced apart'lengthwise oft said platen andfixed thereto, said stops being cooperative withan edge of the work' sheet to' square the latter; means forclampedge of the ing the worksheet in squared position, said means comprisingI a spring-pressed plate pivotally mounted on theplaten, said plate being provided with openingsvthrough which said stops are prot1us'ive;"and means for.

being provided w'ith*opening's through which 'sa'id' stops are --protrus1ve; and means for swinging saidplateaway from the platen to render said stopsoperative, saidlast named fgti meal'is operatingautomatically at" a predef termined p'ointin thev rotation of the platen;

19. Injaitypewriting machine,'the combinat-ion .ofawrotary platen; hand-actuated means for turningisaid platen intermittently step-by-step; gagingmeans'fiXedly secured to the platen for squaring the fw ork sheet;

clamping meansafor holding the work sheetin squared position; and "means for automatically actuating "said clamping .means part of said aujtoinaticl-means' being controlled by rotativ'e' movements of the platen. 20. In a, ltypewritingtmachine, the com bination of a platen-frame a platen rotative thereon; hand actnated means for turning said platen intermittently step -'by s step;

gaging means. fixedly secured' on the platen for squaring the work sheet"; .mea'ns movable independently -of said gaging: means for cl'ain ping the work sheet in squared position; and. means 0111,1116 platen" frame' ope'ratlng mer ts of the platen, on 'saidclamping'means to bring it to position to admit. or receive ."th'eworkshcet. i i' 1 21.11; a typewriting maohine,the'com-. bination 0t a platenffralne'; a platen rotative thereon hand actnated means for turning said platen intermittently step by step; gaging meansfixed; on the platen for squaring the work sheet a spring-pressed clamping platefor bar pivotally supported on the platen and carryinga erank arm; anda cam uplate'fixedto said platen frame and co operatii eavith said'crank anin to overcome theiefiect of the "clamping plate spring and; render said'elampin'g "plate operative to admit the work sheet. 7 j

22. In typewriting machine, "the com hination of a platenfyhandactuated means for'turning said platen intermittently stepby-step; stops for squaring the Work sheet,

said stops being fixed on said platenand" progectmg from thesurface thereof; and a paper clamp pivotallyj supported exteriorly J V I 70 swingingsaid plate away froin the platen to of the platen and cooperative with the work sheet after it has been squared;

. 23. In a typewriting machine; the combination of a platen; hand-actuated means for turning said platen intermittently stepby-step; stops secured on the platen for squaring the work sheet; a sprin -pressed clamp pi'votally supported exterior y of the platen; and means for-automatically actuating said clamp to cooperate with the work sheetafter it has been squared.

24. In a typewriting machine, the com,-

bination of a platen; hand-actuated means for turning said platen intermittently stepby-step; stops spaced apart lengthwise of the platen and fixed on the platen for squa'ring the work sheet; bearing brackets; a clamping plate pivoted on said brackets and provided with a spring tending to constantly maintain it in engagement with the platen; and means for automatically actuating said clamping plate.

25. In a typewriting machine, the C01I1- bination of a platen frame; a platen having a groove therein; stop pins on the platen for squaring the work sheet; bearin brackets on the platen heads; a bar of rod partially seated in saidgroove in the platen and pivotally supported at its ends'in the bearing brackets; a clampingplate fixed to said bar and provided with openings through which the stop pins are protrusive; a sprmg tending constantly to press said clamping plate against said platen; a crank arm fixed to said bar or rod and provided with a roller at its free end; and a camplate fixed to said platen frame and cooperative with the roller on said crank arm.

- 26. In a ty ewriting machine, the combination of a p late n frame; a platen rotative' thereon; springpressed paper controlling means mounted on the laten frame; means for squaring the work s ieet mounted on the platen; means for clamping the work sheet also mounted on the platen; and automatic means foractuating said clamping means, the pa er controlling'means on the platen frame ein automatically operative to ena ge with t e work sheet after the latter has een clamped ,to the platen.

27. In a typewriting machine, the com- PF bination of a rotary ten; line space devices therefor comprising a -sprmg detent and a line space ratchet wheel provided with a plurality of teeth and having a portion of its periphery smooth; a clamping device supported on the laten and automatically operativetlrheld t e work sheet in fixed relation with said platen, the arrangement being such that as the platen is turned in line spacing direction immediately after the clamping device operates,\ said spring! detent will co operate with the smooth portion of the periphery of the line space wheel.

28. In a typewriting machine, the combmation ofa platen frame; a platen rotative thereon; line space devices comprising a spring detent and a ratchet wheel provided with a 'plurality 'of teeth and havin a portionofaits eriphery smooth; a c amping device on t e platen; and means on the platen frame cooperating with said clampmg devicesduring rotative movements to operates with said line spacing wheel,'the.

construction and arrangement of the parts being such that the platen will be properly positioned to receive the first line on the work sheet when the detent cooperates with a tooth on one side of the smooth or untoothed portion of the linespacin Wheel and the platen will be positloned wien the work sheet will receive the last line thereon when the detent cooperates with a tooth on the other side of the smooth or untoothed portion of the line spacing wheel. I

Signed at the borough of Manhattan, clty of New York, in the county of New York,

and State ofNew York, this 31st day of October A. D. 1906..

GLIO B. YAW.

Witnesses:

J. B. Dmuvrs, E. M. WELLS. 

